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Serum metabolomics reveals pathways and biomarkers associated with asthma pathogenesis.

Authors
Jung, J; Kim, SH; Lee, HS; Choi, GS; Jung, YS; Ryu, DH; Park, HS; Hwang, GS
Citation
Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology, 43(4):425-433, 2013
Journal Title
Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology
ISSN
0954-78941365-2222
Abstract
BACKGROUND: Asthma is a chronic inflammatory disease caused by complex interactions of genetic, epigenetic, and environmental factors. For this reason, new approaches are required to clarify the pathogenesis of asthma by systemic review.



OBJECTIVE: We applied a (1)H-NMR metabolomics approach to investigate the altered metabolic pattern in sera from patients with asthma and sought to identify the mechanism underlying asthma and potential biomarkers.



METHOD: A global profile of sera from patients with asthma (n = 39) and controls (n = 26) was generated using (1)H-NMR spectroscopy coupled with multivariate statistical analysis. Endogenous metabolites in serum were rapidly measured using the target-profiling procedure.



RESULTS: Multivariate statistical analysis showed a clear distinction between patients with asthma and healthy subjects. Sera of asthma patients were characterized by increased levels of methionine, glutamine, and histidine and by decreased levels of formate, methanol, acetate, choline, O-phosphocholine, arginine, and glucose. The metabolites detected in the sera of patients with asthma are involved in hypermethylation, response to hypoxia, and immune reaction. Furthermore, the levels of serum metabolites from patients with asthma correlated with asthma severity; in particular, lipid metabolism was altered in patients with lower forced expiratory volume in 1 s percentage (FEV(1)%) predicted values. In addition, potential biomarkers showed strong predictive power in ROC analysis, and the presence of asthma in external validation models was predicted with high accuracy (90.9% for asthma and 100% for control subjects).



CONCLUSION & CLINICAL RELEVANCE: These data showed that (1)H-NMR-based metabolite profiling of serum may be useful for the effective diagnosis of asthma and a further understanding of its pathogenesis.
MeSH terms
AdultAsthma/*etiologyBiological Markers/bloodCase-Control StudiesCross-Sectional StudiesEosinophilsFemaleHumansImmunoglobulin E/blood/immunologyMale*Metabolome*MetabolomicsMiddle AgedNeutrophilsNuclear Magnetic Resonance, BiomolecularReproducibility of Results*Signal TransductionSputum/immunologyYoung Adult
DOI
10.1111/cea.12089
PMID
23517038
Appears in Collections:
Journal Papers > Research Organization > Regional Clinical Trial Center
Journal Papers > School of Medicine / Graduate School of Medicine > Allergy
AJOU Authors
김, 승현박, 해심
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